261577953

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{319387}}^1$

素因数の和:319413

約数の個数: 24

約数和(自身を含む): 465028928

約数和(自身を除く): 203450975

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 319387, 958161, 2235709, 2874483, 4152031, 6707127, 12456093, 20121381, 29064217, 37368279, 87192651, 261577953]

約数ペア:

[(1, 261577953), (3, 87192651), (7, 37368279), (9, 29064217), (13, 20121381), (21, 12456093), (39, 6707127), (63, 4152031), (91, 2874483), (117, 2235709), (273, 958161), (819, 319387)]